<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>BOM对象</title>
</head>
<body>
	<!-- 浏览器对象模型  BOM-->
	<!-- 
		1.window
			alert()
			confirm()
			prompt()

			setInterval()
			setTimeout()
		2.location
			href
			hash
			url
			...
			reload()
		3.screen
		4.history
			go()
	 -->
</body>
</html>